Index: boost/detail/sp_counted_base_sync.hpp
===================================================================
--- boost/detail/sp_counted_base_sync.hpp	(revision 45588)
+++ boost/detail/sp_counted_base_sync.hpp	(working copy)
@@ -18,6 +18,10 @@
 #include <boost/detail/sp_typeinfo.hpp>
 #include <limits.h>
 
+#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
+#include <ia64intrin.h>
+#endif
+
 namespace boost
 {